in september his base was attacked by the taliban. it's his second tour of duty. >> if you are a parent or, you know, relation and the person is away like that in these incredibly dangerous and challenging things, i know you worry all the time. certainly every night, i worry. but, you know, he loves doing what he's doing. he's brilliant at it. keep his head down and protecting our troops on the ground. i constantly meet the families of those who have lost their sons or husbands or brothers or sisters. i have some understanding, at least, of what they go through. >> reporter: prince william has also been back at works a rescue helicopter pilot. even on new year's eve and new year's day, risking his own life to save other people. matt? >> all right. mi michelle kosinski at buckingham palace today. michelle, thank you. >>> by the way, we're learning mo r about that never-before-seen photo of diana on friday. >> this was taken before her marriage to prince charles and was marked "not to be published." a lot of people wondered about the ma